layui.define(["jquery", "element"], function (exports) {
  "use strict";

  /**
   * 类 型 转 换 工 具 类
   * */
  var MOD_NAME = "convert",
    $ = layui.jquery,
    element = layui.element;

  var convert = new (function () {
    // image 转 base64
    this.imageToBase64 = function (img) {
      var canvas = document.createElement("canvas");
      canvas.width = img.width;
      canvas.height = img.height;
      var ctx = canvas.getContext("2d");
      ctx.drawImage(img, 0, 0, img.width, img.height);
      var ext = img.src.substring(img.src.lastIndexOf(".") + 1).toLowerCase();
      var dataURL = canvas.toDataURL("image/" + ext);
      return dataURL;
    };
  })();
  exports(MOD_NAME, convert);
});
